Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 95mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke95 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S
The AirTAC SAIJ50X95-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 75 to 95 mm. Delivering 982 N of push force at 0.5 MPa, it handles mid-range actuation tasks reliably. The extruded aluminum barrel features sensor grooves on both sides, and this -S variant includes a magnet for position detection.
This model utilizes a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and features PT tapered port threads. The rear adjuster acts strictly as a mechanical stop to trim the effective stroke during commissioning; it does not lock or hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 95 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×95 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S Is Used
Machine Changeover
Dial in the 75-95 mm travel window during product size changes to set new end positions without swapping cylinders.
End-Position Tuning
Fine-tune the retract stop at commissioning to perfect cycle timing and avoid mechanical hard stops.
Corrosion-Resistant Actuation
Leverage the SUS420J2 stainless steel rod for mid-range thrust tasks in environments with moisture or light chemicals.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S the Right Cylinder?
Choose this 50 mm bore when you need more thrust than the 40 mm bore (628 N push at 0.5 MPa) but want a smaller footprint than the 63 mm bore (1559 N). The adjustable stroke is ideal for machine setups requiring precise end-position tuning without adding external stops. If exact end-position holding without live air is needed, an external pilot-operated check valve or the SAIL lock series is required instead of relying on the SAIJ adjuster.
To match this ISO 15552 cylinder, specify a 50 mm bore, 95 mm nominal stroke, 20 mm adjustment range, PT G1/4 port, and the -S magnet for CMSE reed or DMSE electronic sensors. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Because the stroke is under 300 mm, side-load stress on the 20 mm rod is minimal, though external guides are recommended for heavy lateral loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX95-20S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. It can reach up to 1767 N push at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 95 mm nominal stroke by up to 20 mm. This creates a usable travel window of 75 to 95 mm for fine-tuning without replacing the cylinder.
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